Improvement in center sliding gasaliers



UNITED NSTATES PATENT QEErcE.V

SAMUEL B. H. YANCE, OF NEW YORK, N. Y., ASSIGNOR TO MITCHELL, VANOE 85 OO., OF SAME PLAGE.

'IMPROVEMENT IN CENTER SLlDlNG GASALIERS.

Specification forming part of Letters Patent No. 184,120, dated November 7, 1876; application led d October 7, 1876.

To all whom it may concern:

Be it known that I, SAMUEL B. H. VANGE, of the city, county, and State of New York, have invented a new and useful Improvement in Center Sliding Gasalier, ot' which the following is a specification:

Figure l is a side view of my improved gasalier, partly in section through the line .fr a', Fig. 2. Fig. 2 is a view of the same turned one-quarter around, and partly in section through the line y y, Fig. 1. Fig. 3 is a horizontal section ofthe same, taken through the line z z, Fig. 1. Fig. 4 is a horizontal section of the same, taken through the line c lv, Fig. l. Fig. 5 is a detail view, showing the pawl, ratchet, and springdrum enlarged. Fig. 6 is a detail section of the spring-drum enlarged.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish improved center sliding gasaliers which shall be simple in construction, inexpensive in man- -ufacture, and not liable to get out of order,

and at the same time compact and neat in appearance.

The invention consists in the combination of the cap, the square tube, provided with a stuffing-box at its upper end, the cord, the short tube, the drum, the rod, the spring, and the ratchet and pawl with each other, and with the outer tube, the inner tube, the distributing-chamber, and the inlet-tube, as hereinat'ter fully described.

A is the tube, the upper end of which is connected with the gas-pipe, and the lower end is connected with a hollow circular block or distributing-chamber, B. In the opposite sides of' the block B are formed holes, in which are secured the ends of the'tnbes O oi' the side lights. In the center of the bottom of the block B is formed a hole, in which is secured the upper end of a tube, D, the lower end ot' which is left open. E is a square tube, which slides up and down upon the tube D, and is provided with a stuffing-box, F, at its upper end, to prevent any escape of gas through said upper end around the tube D. The tubes D E are surrounded by a tube, G, the upper end of which is secured to the block B, and

upon its lower end is screwed a cap, H. The cap H has a square hole formed through it to receive the square tube E, and prevent it from turning as itis slid up and down. With the lower end ofthe square tube E are connected the tubes I ofthe center light.

With this construction the gasl passes down through the inner tube D into the square tube E, and thence into the center-light tubes I.

To the upper end of the square tube E is attached the end of a cord, J, which passes up through the space between thetubes D G, through a short tube, K, that passes through the block B, and its upper end is secured to the drum L, the tube K preventing the escape of any gas from the chamber B around the cord J. The drum L revolves upon a rod, M, which works in bearings attached to the lower part of the tube A. N is a spring coiled around the rod M, and the ininer end of which is secured to the said rod M. The outer end of the spring N is attached to the drum L.

By this construction, as the center light is drawn down the oord J unwinds from the drum L, which turns the said drum L and coils up the spring N. The tension ot the spring N and the weight of the square tube E and its attachments should so nearly balance each other that the center light will be sustained in any position into which it may be adjusted, but may be raised and lowered with ease.

To one end of the rod M is attached a' ratchet-wheel, O, with the teeth of which engages the pawl P, which is pivoted to the tube A, and is held down upon the said ratchetwheel O by a spring, Q, also attached to the tube A.

The end of the rod M is slotted to receive the end of a screw-driver, so that it may be turned forward to increase the tension ot the spring N, and, by raising the pawl P, may be allowed to turn back to lessen said tension, thus enabling the tension of the spring to be adjusted as required.

To the block B is attached an ornamental cup, B, to hide the drum L and its attachments, and to give a lnish to the gasalier.

l drum L, the rod M, the spring N, and the Having thus described my invention, I with the outer tube Gr, the inner tube D, the

claim as new Imd desire to secure by Letters distributing-chamber B, `and the inlet-tube A, Patentsubstantially as herein shown lMld described.

The combination of the cap H, the square tube E, provided with a. stuffing-box at its SAMUEL B. H. VANCE. upper end, the cord J, the short tube K, the Witnesses: l

JAMES T. GRAHAM,

ratchet and pawl O P Q with each other, and C. SEDGWIOK. 

